Emerson 308014EN Manuel D’Utilisation
6-1
Rosemount Tank Radar REX
Chapter 6 The Field Communication
Installation Manual
308014EN, Edition 4
May 2013
May 2013
6.
The Field Communication Unit
The Field Communication Unit (FCU) continuously polls data from the
Radar Tank Gauges and the Data Acquisition Units and stores it in a
buffer memory. The Field Communication Unit is the master on the Field
Bus but acts as a slave on the Group Bus.
Radar Tank Gauges and the Data Acquisition Units and stores it in a
buffer memory. The Field Communication Unit is the master on the Field
Bus but acts as a slave on the Group Bus.
Note!
No explosion protection is provided, so the Field Communication Unit
must be installed in a non-hazardous area.
must be installed in a non-hazardous area.
Figure 6-1.
The Field Communication Unit.
6.1
FCU Enclosure
As standard the Field Communication Unit is shipped in a weather
protected, wall-mounted box of the same type as the Data Acquisition
Unit. The Field Communication Unit is built on a Printed Circuit Board
and may be delivered as such for mounting within a customer supplied
enclosure.
Unit. The Field Communication Unit is built on a Printed Circuit Board
and may be delivered as such for mounting within a customer supplied
enclosure.
Ground
connection
Cable
outputs
FCU_2160.eps